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In triangleABC, (cos2A)/(a^(2))-(cos2B)/...

In `triangleABC, (cos2A)/(a^(2))-(cos2B)/(b^(2))=`

A

`b^(2)-a^(2)`

B

`a^(2)-b^(2)`

C

`(1)/(b^(2))-(1)/(a^(2))`

D

`(1)/(a^(2))-(1)/(b^(2))`

Text Solution

Verified by Experts

The correct Answer is:
D
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